EP0324462B1 - Klimaanlage - Google Patents

Klimaanlage Download PDF

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Publication number
EP0324462B1
EP0324462B1 EP89100440A EP89100440A EP0324462B1 EP 0324462 B1 EP0324462 B1 EP 0324462B1 EP 89100440 A EP89100440 A EP 89100440A EP 89100440 A EP89100440 A EP 89100440A EP 0324462 B1 EP0324462 B1 EP 0324462B1
Authority
EP
European Patent Office
Prior art keywords
air
room
air conditioning
conditioning device
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89100440A
Other languages
English (en)
French (fr)
Other versions
EP0324462A2 (de
EP0324462A3 (de
Inventor
Hidenori Mitsubishi Denki K.K. Ishioka
Hiroyuki Mitsubishi Denki K.K. Umemura
Kenji Mitsubishi Denki K.K. Matsuda
Tetsuji Mitsubishi Denki K.K. Okada
Katsuyuki Mitsubishi Denki K.K. Aoki
Seiji Mitsubishi Denki K.K. Kubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
REVOCA OFFERTA DI LICENZA AL PUBBLICO;
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP63003384A external-priority patent/JPH0765796B2/ja
Priority claimed from JP1988003318U external-priority patent/JPH01109747U/ja
Priority claimed from JP63065182A external-priority patent/JPH0754196B2/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0324462A2 publication Critical patent/EP0324462A2/de
Publication of EP0324462A3 publication Critical patent/EP0324462A3/de
Application granted granted Critical
Publication of EP0324462B1 publication Critical patent/EP0324462B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/021—Inverters therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to an air conditioning device according to the preamble of claim 1 (JP-A-33496/1982).
  • Figures 5 and 6 shows the essential parts of a conventional inverter drive type of air conditioning device.
  • Figure 5 is a block diagram showing the control unit of the conventional air conditioning device.
  • Figure 6 is a cross sectional view showing the outlet port of a ceiling mounted or wall mounted type of air conditioning device as for example disclosed in Japanese Examined Patent Publication No. 33496/1982.
  • reference numeral 10 designates an electric motor (compressor motor) which is an element constituting an electrically driven compressor.
  • the compressor, an indoor heat exchanger, a decompression device and an outdoor heat exchanger are connected in series to form a refrigerant compression cycle.
  • Reference numeral 11 designates a control unit which is constituted by compressor frequency generating circuit (inverter) 12 as frequency changing means for the motor 10 and a microcomputer 13 as control means.
  • the control unit controls the frequency of three phase a.c. power applied to the motor 10, based on a room temperature detected by a temperature sensor 14.
  • Reference numeral 15 designates a blade which is used for changing the flowing direction of air (conditioned air) blown off from an outlet port 17 into the room, and which is arranged in a supply port 18 at a position in the vicinity of its central portion so as to be rotatable about a shaft 19.
  • Reference numeral 16 designates a blade driving electric motor as flowing direction changing means, which is used to rotate the blade 15.
  • Reference numeral 20 designates the upper end of the outlet port.
  • Reference numeral 21 designates a lower guide wall in a curved form, which has the front surface formed with a guiding surface made of heat insulating material 22 having a predetermined thickness.
  • the blade 15 is arranged in the supply port 18 in the vicinity of its central portion so as to be rotatable about the shaft 19.
  • the conditioned air which flows from the supply port 18 into the outlet port 17 flows along the blade 15, and is blown off from the outlet port 17 in either an upward direction, a lower direction or the horizontal direction depending on the incline of the blade 15.
  • the blowing direction of the conditioned air is usually determined taking the temperature distribution in the room and the sense of a user in the room into account.
  • the cool air is usually blown off upward in the room, i.e. it is blown off in the horizontal direction in the wall mounted or ceiling mounted type of air conditioning device because such device is mounted at an upper portion in the room, and it is blown off upwardly in an air conditioning device which is put on the floor or mounted on the wall at a lower portion.
  • This allows cool air blown off upwardly in the room to cool the space around a user at a lower portion in the room while it is spreading throughout the inside of the room.
  • any type of air conditioning devices have been prevented from blowing off cooled air downwardly with intention. Conversely, if warm air is blown off upwardly in the room, the warm air which has risen once does not come down, thereby preventing the space around a user at a lower portion in the room from becoming warm. For the reason, any type of air conditioniong devices have blown off the warm air downwardly in the room so that the warm air blown off downwardly is spreading and rising in the room to warm the entire inside of the room.
  • the conventional air conditioning devices have been gradually decreasing the frequency of a.c. power applied to the compressor motor 10 as the actual temperature approaches to a set temperature or when the actual temperature has reached a set temperature once, in both room cooling and room heating operation.
  • reference numeral 21 designates an indoor unit housing of the air conditioning device which can carry out room cooling and room heating operation.
  • the housing is provided with a upper outlet port 22 and a lower outlet port 23 in the upper and lower portions, and with an intake port 24 in the central portion of the front end.
  • Reference numerals 25 and 26 designate cross flow fans which are arranged in the housing so as to correspond to the upper and lower outlet ports 22 and 23.
  • Reference numeral 27 designates an indoor heat exchanger which is arranged in the housing so as to correspond to the intake port 24, and which functions as an evaporator on room cooling operation and as a condenser on room heating operation.
  • Reference numeral 28 designates an air filter which is provided in the intake port 24.
  • Reference numerals 29 and 30 designate fan casings which are placed around the cross for fans 25 and 26.
  • the refrigerant circuit of this air conditioning device is constituted by a compressor 31, a four port valve 32, an outdoor heat exchanger 33, a capillary tube 34 for room heating operation, a capillary tube 35 for room cooling operation, two check valves 36 and 37, the indoor heat exchanger 27 and a receiver 38, as shown in Figure 15.
  • An electric motor 39 for the compressor 31 is connected to power through a main switch 40, a switch 41 having a "cooling" contact and a “heating” contact for selecting either room cooling operation or room heating operation, and a thermostat 42 which is actuated depending on the detection of a room temperature.
  • a relay coil 43 for the four port valve 32 has one end connected to a "heating" contact of the switch 41, and the other end connected to power.
  • Reference numeral 44 designates a switch (hereinbelow, referred to as a sleep switch) which is actuated when a user goes to bed, and which comprises a pair of two switches, the respective switches having one end connected to the "cooling" contact and the “heating” contact of the switch 41 and the other end connected to power through the relay coils 45 and 46, respectively.
  • a fan motor 47 for the upper cross flow fan 25 connected to the main switch 40 through a normally closed relay contact 48 actuated by the relay coil 46, and through a switch 49.
  • a lower fan motor 50 for the lower cross flow fan 26 is connected to the main switch 40 through a normally closed relay contacts 51 actuated by the relay coil 45 and through a switch 52.
  • the main switch 40 when a normal room cooling or room heating operation is carried out, the main switch 40 is closed, the switch 41 is placed in the position of either the "cooling" contact connection or the “heating” contact connection, and both switches 49 and 52 or either one is closed so as to actuate the compressor 39 and the fan motors 47 and 50, thereby carrying out room cooling or room heating operations.
  • the relay coil 45 is energized to open the relay contact 51, thereby stopping the operation of the lower fan motor 50 while continuously driving the upper fan motor 47.
  • cool air is blown off only from the upper outlet port 22 of the housing 21 which is mounted on an upper portion of the wall of the room.
  • the relay coil 46 is energized to open the relay contact 48, thereby stopping the operation of the upper fan motor 47 while continuously driving the lower fan motor 50.
  • warm air is blown off from the lower outlet port of the housing 21 which is amounted at an upper portion of the wall of the room.
  • the system can carry out room heating operation appropriate to the time when the user sleeps in bed.
  • reference numeral 61 designates an indoor unit housing.
  • Reference numeral 62 designates an upper cross flow fan which is arranged at an upper portion in the housing 61.
  • Reference numeral 63 designates a lower cross flow fan which is arranged at a lower portion in the housing 61.
  • Reference numeral 64 designates an indoor heat exchanger which is arranged near to the front end of the housing 61 and between the upper cross flow fan 62 and the lower cross flow fan 63.
  • Reference numeral 65 designates an upper outlet port which is formed in an upper front end of the housing 61.
  • Reference numeral 66 designate a lower outlet port which is formed in a lower front end of the housing 61.
  • speed changing means can drive both upper and lower fans 62 and 63 alternately in a higher speed and in a lower speed to make conditioned air blown off from both outlet ports 65 and 66 flow alternately in the routes indicated by arrows A and C and in the routes indicated by arrows B and D in Figure 11, thereby uniforming air flow distribution in the room to be air conditioned.
  • Time signal producing means can control the times of the higher speed and the lower speed of both fans 62 and 63.
  • the frequency of a.c. power applied to the compressor motor 10 is decreased.
  • the frequency is being gradually decreased as the room temperature approaches to a set temperature.
  • the temperature of the conditioned air on room cooling operation is not so low, and the conditioned air is blown off in the horizontal direction or an upward direction so that the conditioned air is prevented from hitting a user directly.
  • the upper and lower fans 2 and 3 are driven alternately in the higher speed and in the lower speed in a predetermined pattern by the speed changing means, and the times of the higher speed operation and the lower speed operation are controlled in a predetermined pattern by the time signal generating means.
  • This allows the upper air flow and the lower air flow to get in interference with each other and be agitated, thereby obtaining good temperature distribution in the entire inside of the room.
  • the air volume control by such system creates the following problem because this system is directed to air condition a single room.
  • the air-conditioning device of the invention is defined in claim 1.
  • a control unit 11 is constituted by a compressor frequency generating circuit (inverter) 12 as frequency changing means for an electric motor 10 for a compressor, and a microcomputer 13 as control means.
  • the microcomputer 13 controls three phase a.c. power to be applied to the motor 10 based on a room temperature detected by a temperature sensor 14.
  • the microcomputer 13 also controls an electric motor 16 for driving a blade 15 which is arranged in a supply port.
  • the control unit of the first embodiment is provided with a "spot" switch 4 which is depressed when a user desires to allow cool air hit himself directly.
  • the "spot" switch 4 is connected to the microcomputer 13 as one of inputs.
  • the microcomputer 13 controls the inverter 12 to change the frequency of a.c. power applied to the motor 10 to the maximum frequency. As a result, the frequency of a.c. power applied to the compressor motor 10 is changed to a value higher than the frequency on normal room cooling operation by the inverter 12.
  • the microcomputer 13 also controls the blade 15 through the blade driving motor 16 to place the direction of the blade 15 downwardly, thereby allowing cool air to be blown off downwardly.
  • the normal mode is selected.
  • the frequency of a.c. power applied to the compressor motor 10 is controlled by the microcomputer 13 and the inverter 12 so as to make the room temperature approach a set temperature at a step S-21.
  • the compressor motor 10 is driven in the maximum frequency which can be attained by the motor 10 because a normal temperature control is carried out.
  • the direction of the blade 15 is controlled by the blade driving motor 16 so as to blow off conditioned air in the horizontal direction at a step S-22.
  • a spot mode is selected.
  • the compressor motor 10 is driven the maximum frequency by the inverter 12 to lower the temperature of the conditioned air at a step S-23.
  • the microcomputer 13 controls the blade driving motor 16 to place the blowing direction of the conditioned air downwardly at a step S-24. In this way, cool air hits the user, allowing him to feel cool air sense.
  • FIG. 3 is a flow chart wherein such restriction of the spot mode operation is carried out at a step S-25.
  • FIG. 4 is a flow chart showing wherein increasing the air volume is carried out at a step S-26 and the air volume is made normal at a step S-27.
  • the blowing direction of the conditioned air into the room is controlled to be directed downwardly, thereby giving cool air sense to the user directly.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Claims (3)

  1. Klimaanlage mit einem Kompressorkreislauf für den Kälteträger, welcher einen elektrisch-betriebenen Kompressor hat, mit einem elektrischen Motor (10) zum Antrieb des Kompressors, mit einem frequenzumformenden Mittel (12) zum Ändern der Frequenz des Wechselstromes, mit dem der Motor versorgt wird, mit einer Auslaßöffnung zum Ausblasen der klimatisierten Luft, mit einem fließrichtungsändernden Mittel (15, 16), das mindenstens eine von dem Motor (16) angetriebene Umlenkplatte (15), mit der die Fließrichtung der klimatisierten Luft aus der Auslaßöffnung veränderbar ist, und mit einem Kontrollmittel (13) zum Kontrollieren des frequenzändernden Mittels und des fließrichtungsändernden Mittels, dadurch gekennzeichnet, das ein Schalter (4) ausgebildet ist, der von einem Benutzer betätigt wird, und daß durch die Betätigung des Schalters (4) während des raumkühlenden Betriebs die Kontrolleinrichtung (13) ein Signal an den Motor (16) abgibt, infolgedessen die Umlenkplatte (15) derart gedreht wird, daß die klimatisierte Luft aus der Auslaßöffnung nach unten gerichtet wird.
  2. Klimaanlage nach Anspruch 1, dadurch gekennzeichnet, daß durch das Bedienen des Schalters (4) die Frequenz des Kompressormotors (10) auf das Maximum erhöht wird.
  3. Klimaanlage nach Anspruch 1 oder 2, gleich gekennzeichnet, daß die Dauer des raumkühlenden Betriebs durch die Betätigung des Schalters (4) beschränkt wird.
EP89100440A 1988-01-11 1989-01-11 Klimaanlage Expired - Lifetime EP0324462B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP3384/88 1988-01-11
JP63003384A JPH0765796B2 (ja) 1988-01-11 1988-01-11 空気調和機
JP1988003318U JPH01109747U (de) 1988-01-14 1988-01-14
JP3318/88U 1988-01-14
JP63065182A JPH0754196B2 (ja) 1988-03-18 1988-03-18 空気調和機の送風制御装置
JP65182/88 1988-03-18

Publications (3)

Publication Number Publication Date
EP0324462A2 EP0324462A2 (de) 1989-07-19
EP0324462A3 EP0324462A3 (de) 1992-03-04
EP0324462B1 true EP0324462B1 (de) 1994-08-31

Family

ID=27275755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100440A Expired - Lifetime EP0324462B1 (de) 1988-01-11 1989-01-11 Klimaanlage

Country Status (7)

Country Link
US (1) US4895002A (de)
EP (1) EP0324462B1 (de)
KR (1) KR920007668B1 (de)
CN (1) CN1034991A (de)
AU (1) AU611248B2 (de)
DE (1) DE68917740T2 (de)
HK (1) HK6095A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920007668B1 (en) * 1988-01-11 1992-09-14 Mitsubishi Electric Corp Air conditioner
KR920016791A (ko) * 1991-02-01 1992-09-25 이헌조 에어콘의 루버위치 및 팬속도 조절회로
JPH09113014A (ja) * 1995-10-23 1997-05-02 Sanyo Electric Co Ltd 空気調和機の制御装置
US6003593A (en) * 1995-10-31 1999-12-21 Denso International America, Inc. Automotive vehicle climate control system
ID16935A (id) * 1996-05-22 1997-11-20 Samsung Electronics Co Ltd Alat kontrol arus angin keluar dari mesin penyejuk udara dan metode kerjanya
GR1003320B (el) * 1996-05-22 2000-02-24 Samsung Electronics Co., Ltd Συσκευη ελεγχου του εξερχομενου αεριου ρευματος απο συσκευη κλιματισμου και μεθοδος δι'αυτον
DE59913601D1 (de) 1999-08-06 2006-08-03 Siteco Beleuchtungstech Gmbh Befestigungselement für lichttechnische Komponenten in einer Leuchte
JP4049188B2 (ja) * 2006-03-31 2008-02-20 ダイキン工業株式会社 空気調和機の制御装置及び制御方法
KR20080046522A (ko) * 2006-11-22 2008-05-27 삼성전자주식회사 공기조화기의 취침운전 시 기류제어장치 및 그 방법
FR3068023B1 (fr) * 2017-06-23 2020-05-15 Rte Reseau De Transport D’Electricite Dispositif et procede anti-giratoire de levage, suspension et deplacement d'une charge
CN112254216B (zh) * 2020-09-28 2022-01-21 青岛海尔空调器有限总公司 空调室内机、空调、空调遥控器及控制方法
CN114383297B (zh) * 2021-12-20 2023-05-16 青岛海尔空调器有限总公司 用于控制空调的方法、装置和多联机空调

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911812B2 (ja) * 1979-02-06 1984-03-17 松下電器産業株式会社 冷暖房兼用形空気調和機
JPS5930971B2 (ja) * 1979-03-29 1984-07-30 松下電器産業株式会社 空気調和機の能力制御装置
JPS6138383A (ja) * 1984-07-31 1986-02-24 日本酸素株式会社 空気液化分離装置における保安液化ガスの寒冷回収方法
JPH0684839B2 (ja) * 1984-08-29 1994-10-26 三洋電機株式会社 空気調和機
JPS6199044A (ja) * 1984-10-18 1986-05-17 Matsushita Electric Ind Co Ltd 空気調和装置
US4729293A (en) * 1985-03-29 1988-03-08 Kabushiki Kaisha Toshiba Air direction control apparatus for a louver at an air outlet
GB2178160B (en) * 1985-07-08 1989-07-19 Matsushita Electric Ind Co Ltd Apparatus for deflecting the direction of the wind in an air conditioner
JPS6233246A (ja) * 1985-08-07 1987-02-13 Matsushita Electric Ind Co Ltd 空気調和機の送風制御装置
AU568801B1 (en) * 1986-05-21 1988-01-07 Mitsubishi Denki Kabushiki Kaisha Control system for room air conditioner
JPH0678841B2 (ja) * 1986-07-25 1994-10-05 ダイキン工業株式会社 空気調和機
KR900003870B1 (ko) * 1986-11-19 1990-06-02 미츠비시 덴키 가부시키가이샤 공기조화기의 송풍 제어장치
CN1010707B (zh) * 1987-07-02 1990-12-05 三菱电机株式会社 分离型空气调节器
KR920007668B1 (en) * 1988-01-11 1992-09-14 Mitsubishi Electric Corp Air conditioner

Also Published As

Publication number Publication date
CN1034991A (zh) 1989-08-23
KR920007668B1 (en) 1992-09-14
AU2831489A (en) 1989-07-13
DE68917740T2 (de) 1994-12-22
AU611248B2 (en) 1991-06-06
KR890012133A (ko) 1989-08-24
US4895002A (en) 1990-01-23
DE68917740D1 (de) 1994-10-06
EP0324462A2 (de) 1989-07-19
EP0324462A3 (de) 1992-03-04
HK6095A (en) 1995-01-20

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